Birth control problems 😩😭

Olivia
So Im on my third week of being on Larin the pill and I've never used any other birth control before. But for the past week I've been having cramps, not painful just quite uncomfortable and before I never used to have cramps, also tonight I am currently 4 days away from starting my period, and I just has some blood when I wiped (was fresh blood), but my boyfriend saw a little speck of what could have been old blood earlier in the shower. Just wanted to know if any of this was normal or if I need to go back and see my doctor. Thanks! ❤